Beth solved the system of equations by making a substitution for y in the second equation. What equation did she get as a result
1 answer:
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Answer: D) Reflect over x-axis
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Explanation:
When we do this type of reflection, a point like (1,2) moves to (1,-2).
As another example, something like (5,-7) moves to (5,7)
The x coordinate stays the same but the y coordinate flips in sign from positive to negative, or vice versa.
We can say that as a general way to represent the transformation. Note how y = f(x), so when we make f(x) negative, then we're really making y negative.
If we apply this transformation to every point on f(x), then it will flip the f(x) curve over the horizontal x axis.
There's an example below in the graph. The point A(2,8) moves to B(2,-8) after applying that reflection rule.
Answer:
17.8
Step-by-step explanation:
We can find this because we know that to make a cube, we need to do or
. With this, we can simplify our equation (by taking the root of both sides) to
or 17.8.